Bacteria are the primary cause of irritation and inflammation to the gingival.

细菌是牙龈受到刺激和感染的主要原因。

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Conclusion This cultured tissue engineering skin model has been well established, which may apply as a primary test for the irritation of chemicals to the skin.

结论构建的组织工程皮肤模型能判定化学品的刺激性，可以尝试用于化学品刺激性的检测。

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